Particle Measuring Systems is the global leader in microcontamination monitoring, with over 40 years of experience
delivering solutions for particle, molecular, and microbial
contamination detection in clean manufacturing environments. With offices in the US, Belgium, Brazil, China,
Denmark, France, Germany, Italy, Japan, Singapore, UK, and
over 35 distributors providing sales and service in more than
70 countries, Particle Measuring Systems is local everywhere.

As the inventor of the laser-based optical particle counter,Particle Measuring Systems sets the standard for contam-ination monitoring in semiconductor, data storage, dis-play, pharmaceutical, nanomaterial, aerospace, and relatedindustrial manufacturing applications. Our investments inresearch, engineering, and manufacturing of products hasresulted in more than 60 patents related to our technologyand applications. Grounded by this technical foundation, ourmarket leadership is evidenced by advanced detection tech-nologies and systematic releases of innovative solutions formicrocontamination monitoring applications. For years theseinnovations have enabled process-driven companies to makefact-based decisions, improve process yield, and comply withchanging regulatory requirements.Our technologists actively participate with customers andindustry standards committees to understand the evolvingneeds and challenges faced by our broad customer base. Ourrenowned Particle College® program includes a two-dayseries of lectures and hands-on labs covering basic conceptsthrough advanced applications of microcontamination mon-itoring and control. The sessions are education-focused andare offered semi-annually at the company headquarters inBoulder, Colo., and periodically all over the world.Acquired by Spectris in 1996, Particle Measuring Systemsis one of 13 operating companies focused on providingproductivity enhancing instrumentation and controls.Headquartered in the UK, Spectris employs over 7,400 peo-ple in more than 30 countries worldwide. The way we workis supported by our values, providing a framework that allof our people understand and respect: absolute integrity,empowerment, customer focus, restless innovation and highperformance.